Subtract 28/7 from 40/24, Solve 1 16/24

Subtract 28/7 from 40/24

1^st number: 1 16/24, 2^nd number: 4 0/7

40/24 - 28/7 is -7/3.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 7 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 24 × 7 = 168,
40/24 = 40 × 7/24 × 7 = 280/168
Likewise, for the 2nd fraction, since 7 × 24 = 168,
28/7 = 28 × 24/7 × 24 = 672/168
Subtract the two like fractions:
280/168 - 672/168 = 280 - 672/168 = -392/168
After reducing the fraction, the answer is -7/3

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